1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb8c4157e10a343beb607e7e147bc7dfe90d938a59dc88cc5b6ae012053c67ce. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/38ae8b1e-1562-4369-ab98-ece95cf43d4e.json and https://artists.proofprofile.net/proofs/artist/38ae8b1e-1562-4369-ab98-ece95cf43d4e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58070ba99c9fc2502148f8f414289bf3f88e08559bffffface4588bbf84a5497. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:30:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTET1000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b8f947d50fdd7452fbf587e7766dbbabdadc24c16aca0aaf3d443d764ae6499. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTET1000025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x235a5bcbbea1d99aedb090d8a0de35ad3556a0812b8cdaa2f69f98b5dda1fd04. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTET1000022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dcd31e01f997e1ae5c2f8ab4cb8062c4d8172c6eee2cead74dde3ae7872d047. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTET1000023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b11eebf3be1002af658a3fe6c5da5e437fb123ca70d0b7d274895c9ac612ec. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:49:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTET1000031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5de0ab1d0c10bd0bc13cc28c2f3d750a0482022c7c5b7ac6eb8ca97a34ef974e. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T02:06:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTET1500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69b563721257204b90b155a4f6e57c0de1c606c9771014f03848a593392b9384. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTET1500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaeffe7a902feef44e3e6923fc52d3b0ecca3795ec737ced4b8d28e867899802. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTET1500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7ced4fbdc0ab1d4cd2153fa1d5fe197f67bb4558e91f9b6bb453e7e10e5e61. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:38:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTET1500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0739559721fc8544bee5af2c0e577baf3964f994e2f78f3c3bbcb13d284cd9fd. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTET1500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd62ff026e1a457f8188da6e7c2d736607b75749413c10013b7edc8a1b2890cbd. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTET1500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e410681da24dfd3404d0d94fce554638592b46f5a0a71e8cc146029adb1f887. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTET1500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d1d94f99315becab8c3c7d519877adce586acebb2b303e782f2d2fa28660c57. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTET1900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2ae4afc64a0bddae96cc3ea1bc43d757329d8edc48567a6499e6e1a237190e. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTET1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a49578acc325fd0d7d3ab484d21c6641df2de68a7f9020f218375ecd2a48a4. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTET1900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e3947b7c4ac7e0931525accfe75ddd4c30473127c5949901bec3785087c59d. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTET1900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0be933431c426cf31f5b6e814d4ab1abecdc321a8fd7e36e45a0c30b33dd188. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTET1900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394ab2a320570d20ff13140baebe0e0b261cab38af7c72c93398c901a118a61a. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:52:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTET1900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a067fb82ed307b209efd7983ca98e374891484819b24920aa9023307e9fb129. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTET2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cd2ff25ffe76be2cd97f9c8e62941919b43681511d2a19ad8ed8048aea05db5. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTET2100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e44e46d28d6e0d84c30f88777f76bc501759d9e47378b69c185dc85d5e94697. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTET1700014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd62e725b6740c0707c610c0b63a43f8e7a758d2136f31c3c27af99e7410b1ec. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:37:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTET1900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f605c099cfb72c096e91b879d697a34d256c1b8b724867afac06f090c538af6. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTET2200039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d5651c01e06ba3575fd4a2d845868af43efced38968ce11afd6297d23b6f21. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTET2200042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf6ad1cd9249d49a81557b4428b43e1e24408d46c406eba0b4133a3c60e9230e. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTET2200043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a639553aa5c815af72509b7709a6a2da1ae8f4c439737efd10492d18b5dd52. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTET2200052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0889cd7813d4f76e204de9fe8f8b302bb24e81b4fbaa23307c071e071f3dada. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTET2200045.
o - Uma cidade chamada eu mesmo (Parte 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66fbfd2151cddb514f00416b17bd20a0eb3a2fc7db5b1a3dbddcfc2b736f894f. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTET2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadc619a78c4117db035f79a8acff359770106ffc517021ffe90e7521bd59881e. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTET2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd34f9bae4ddef9e215c0b70160fea52c1ff4ab63a8d91e91364f9aa105c2be. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTET2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b87f0f62a9bf1715066ad83e0d9e4be355bc4fca217f38462078768632e800. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BR1WR1600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b8f947d50fdd7452fbf587e7766dbbabdadc24c16aca0aaf3d443d764ae6499. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTET1000025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafbf54372142a4683fca2fec90c5562121fab33a210c42639e69412cdf06ee7d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BKPDA2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d71ac90fbf3be3c64b6a67becbe4b0dbcc443f4fe70a97348392e0e168743b5. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ52121572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5586035fbada73f4683a669827a3b61aa417cb23493de473f36f040990fdb129. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXGTT2400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x058d947c210a702c5602ae32eead822c8a23b75898284d222734208d8b93c8f9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXSVC2000139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fba8fa7bb470da9af9aeade4cc686a89d64eab240cb72ecf5b7dacf5d38ec49. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRDU21900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eaedfbc0961b6576eab735b7557652dedf27bccfa4c09c5434f743b7a9ce14e. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRKQI2200005.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Coitadinha Bem Feito - As Canções de Ângela Ro Ro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc85adc803c239ce83fb522eefba03a323162551d8094c9766828157b9154cd. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTRB1300015.